# dic = {'alex': [1, 2, 3], 'wusir': 58, 'taibai': 47}
# # print(dic['alex'])
# # dic['asd'] = 58
# # print(dic)
# dic.setdefault('alex')
# print(dic)

# dic = {'alex': [1, 2, 3], 'wusir': 58, 'taibai': 47}
# # for k,v in dic.items():
# #     print(k,v)   # 获取每一个元素的键和值
# for i in dic.items():
#     print(list(i))


